Ear plug



FIG. 1 is a perspective view of an ear plug showing my new design.

FIG. 2 is a side view thereof;

FIG. 3 is an inner end view thereof;

FIG. 4 is an outer end view thereof; and,

FIG. 5 is a cross section on the line 5--5 of FIG. 1. 

The ornamental design for an ear plug, as shown and described. 